Compact PCI是一種基於標準PCI匯流排的小巧而堅固的高性能匯流排技術。1994年PICMG（PCI Computer Manufacturer’s Group, PCI工業計算機製造商聯盟）提出了Compact PCI技術，它定義了更加堅固耐用的PCI版本。在電氣、邏輯和軟體方面，它與PCI標準完全兼容。卡安裝在支架上，並使用標準的Eurocard外型。
二 Compact PCI規格
· 業界標準PCI晶元組，以低價格提供高性能
· 單匯流排8個槽，可通過PCI橋擴展
· 歐式插卡結構
· 高密度氣密2mm針孔接頭
· 前面板安裝和拆卸
· 板卡垂直安裝利於冷卻
· 強抗衝擊和震動特性
三 Compact PCI的三大核心技術
Compact PCI具有以下特點：
· PCI局部匯流排
· 標準的Eurocard尺寸（根據IEEE 1101.1機械標準）
· HD（高密度）2mm引腳與插座連接器（IEC認可，Bellcore）
· PCI局部匯流排
PCI即外圍設備互聯之意，1992年由Intel發布，很快成為商業PC機匯流排標準。PCI是一種獨立於處理器的數據匯流排，不但性能良好而且價格便宜。PCI局部匯流排大意兩種數據寬度：32位和64位，匯流排速度可達66MHZ，理論數據處理能力：32位為264MB/S，64位為528MB/S。大多數計算機和操作系統都支持PCI。因為有大量支持PCI的產品，使得PCI產品既便宜又容易買到。擁有這些優勢，PCI匯流排非常適合在高速計算和高速數據通訊領域中應用。
7x47 pin (IEC917 and IEC1076-4-101) connector
7列47行(從Z到F編號).大概可以分為以下幾大類
Row 1-25: 32-bit PCI
Row 26-47: Additional pins for 64-bit PCI (System Slot boards must use it).
Row 26-28 and 40-42: Primarily implemented on System Slot boards.
Z列及F列為地管腳.
具體管腳定義如下表描述:
| 1 | GND | 5V | -12V | TRST# | 12V | 5V | GND |
|---|---|---|---|---|---|---|---|
| 2 | GND | TCK | 5V | TMS | DO | TDI | GND |
| 3 | GND | INTA# | INTB# | INTC# | 5V | INTD# | GND |
| 4 | GND | BRSV | GND | V(I/O) | INTP | INTS | GND |
| 5 | GND | BRSV | BRSV | RST | GND | GNT# | GND |
| 6 | GND | REQ# | GND | 3.3V | CLK | AD(31) | GND |
| 7 | GND | AD(30) | AD(29) | AD(28) | GND | AD(27) | GND |
| 8 | GND | AD(26) | GND | V(I/O) | AD(25) | AD(24) | GND |
| 9 | GND | C/BE(3)# | IDSEL | AD(23) | GND | AD(22) | GND |
| 10 | GND | AD(21) | GND | 3.3V | AD(20) | AD(19) | GND |
| 11 | GND | AD(18) | AS(17) | AD(16) | GND | C/BE(2)# | GND |
| 12 | KEY | KEY | KEY | KEY | KEY | KEY | KEY |
| 13 | KEY | KEY | KEY | KEY | KEY | KEY | KEY |
| 14 | KEY | KEY | KEY | KEY | KEY | KEY | KEY |
| 15 | GND | 3.3V | FRAME# | IRDY# | GND | TRDY# | GND |
| 16 | GND | DEVSEL# | GND | V(I/O) | STOP# | LOCK# | GND |
| 17 | GND | 3.3V | SDONE | SBO# | GND | PERR# | GND |
| 18 | GND | SERR# | GND | 3.3V | PAR | C/BE(1)# | GND |
| 19 | GND | 3.3V | AD(15) | AD(14) | GND | AD(13) | GND |
| 20 | GND | AD(12) | GND | V(I/O) | AD(11) | AD(10) | GND |
| 21 | GND | 3.3V | AD(9) | AD(8) | M66EN | C/BE(0)# | GND |
| 22 | GND | AD(7) | GND | 3.3V | AD(6) | AD(5) | GND |
| 23 | GND | 3.3V | AD(4) | AD(3) | 5V | AD(2) | GND |
| 24 | GND | AD(1) | 5V | V(I/O) | AD(0) | ACK64# | GND |
| 25 | GND | 5V | REQ64# | BRSV | 3.3V | 5V | GND |
| 26 | GND | CLK1 | GND | REQ1# | GNT1# | REQ2# | GND |
| 27 | GND | CLK2 | CLK3 | SYSEN# | GNT2# | REQ3# | GND |
| 28 | GND | CLK4 | GND | GNT3# | REQ4# | GNT4# | GND |
| 29 | GND | V(I/O) | BRSV | C/BE(7 ) | GND | C/BE(6)# | GND |
| 30 | GND | C/BE(5)# | GND | V(I/O) | C/BE(4)# | PAR64 | GND |
| 31 | GND | AD(63) | AD(62) | AD(61) | GND | AD(60) | GND |
| 32 | GND | AD(59) | GND | V(I/O) | AD(58) | AD(57) | GND |
| 33 | GND | AD(56) | AD(55) | AD(54) | GND | AD(53) | GND |
| 34 | GND | AD(52) | GND | V(I/O) | AD(51) | AD(50) | GND |
| 35 | GND | AD(49) | AD(48) | AD(47) | GND | AD(46) | GND |
| 36 | GND | AD(45) | GND | V(I/O) | AD(44) | AD(43) | GND |
| 37 | GND | AD(42) | AD(41) | AD(40) | GND | AD(39) | GND |
| 38 | GND | AD(38) | GND | V(I/O) | AD(37) | AD(36) | GND |
| 39 | GND | AD(35) | AD(34) | AD(33) | GND | AD(32) | GND |
| 40 | GND | BRSV | GND | FAL# | REQ5# | GNT5# | GND |
| 41 | GND | BRSV | BRSV | DEG# | GND | BRSV | GND |
| 42 | GND | BRSV | GND | PRST# | REQ6# | GNT6# | GND |
| 43 | GND | USR | USR | USR | USR | USR | GND |
| 44 | GND | USR | USR | USR | USR | USR | GND |
| 45 | GND | USR | USR | USR | USR | USR | GND |
| 46 | GND | USR | USR | USR | USR | USR | GND |
| 47 | GND | USR | USR | USR | USR | USR | GND |
| Z | A | B | C | D | E | F |
Signal Descriptions:
PRST
Push Button Reset.
DEG
Power Supply Status DEG
FAL
Power Supply Status FAL
SYSEN
System Slot Identification
The following signals must be terminated:
AD0-31
C/BE0#-C/BE3#
PAR
FRAME#
IRDY#
TRDY#
STOP#
LOCK#
IDSEL
DEVSEL#
PERR#
SERR#
RST#
The following signals must be terminated if used:
INTA#
INTB#
INTC#
INTD#
SB0#
SDOBE
AD32-AD63
C/BE4#-C/BE7#
REQ64#
ACK64#
PAR64#
The following signals do no require a stub termination:
CLK
REQ#
GNT#
TDI#
TDO
TCK
TMS
TRST#
The System Slot board must pullup the following signals (even if not used):
REQ64#
ACK64#
[admin via 研發互助社區 ] CompactPCI匯流排介面定義已經有3202次圍觀
http://cocdig.com/docs/show-post-38120.html
